Sharks Fiber Glass Single Fin Surfboard Fin
- Solid fiberglass construction. Durable, predictable flex, and reliable hold in all conditions.
- Balanced template with moderate rake. Smooth rail‑to‑rail transitions and steady trim.
- Perfect for longboards, eggs, and mid‑lengths. Works in point breaks, reef breaks, and small to medium surf.
- Made from recycled fiberglass. Plastic‑free packaging. Includes screw.
- Solid fiberglass construction. Durable, predictable flex, and reliable hold in all conditions.
- Balanced template with moderate rake. Smooth rail‑to‑rail transitions and steady trim.
- Perfect for longboards, eggs, and mid‑lengths. Works in point breaks, reef breaks, and small to medium surf.
- Made from recycled fiberglass. Plastic‑free packaging. Includes screw.
| Spec | Details |
|---|---|
| Setup | Single Fin |
| Material | Solid Fiberglass |
| Flex Rating | Medium / Consistent |
| Size Options | 7", 8", 9", 10.25", 11" |
| Recommended Board Length |
7" → up to 7'6" 8" → 7'6" – 8'4" 9" → 8'4" – 9'2" 10.25" → 9'2" – 9'8" 11" → 9'8" and over |
| System Compatibility | Standard single fin box (US box) |
| Included Accessories | Screws |
| Eco Credentials | Recycled fiberglass, plastic‑free packaging |
| Spec | Details |
|---|---|
| Setup | Single Fin |
| Material | Solid Fiberglass |
| Flex Rating | Medium / Consistent |
| Size Options | 7", 8", 9", 10.25", 11" |
| Recommended Board Length |
7" → up to 7'6" 8" → 7'6" – 8'4" 9" → 8'4" – 9'2" 10.25" → 9'2" – 9'8" 11" → 9'8" and over |
| System Compatibility | Standard single fin box (US box) |
| Included Accessories | Screws |
| Eco Credentials | Recycled fiberglass, plastic‑free packaging |
- Solid fiberglass construction. Durable, predictable flex, and reliable hold in all conditions.
- Balanced template with moderate rake. Smooth rail‑to‑rail transitions and steady trim.
- Perfect for longboards, eggs, and mid‑lengths. Works in point breaks, reef breaks, and small to medium surf.
- Made from recycled fiberglass. Plastic‑free packaging. Includes screw.
- Solid fiberglass construction. Durable, predictable flex, and reliable hold in all conditions.
- Balanced template with moderate rake. Smooth rail‑to‑rail transitions and steady trim.
- Perfect for longboards, eggs, and mid‑lengths. Works in point breaks, reef breaks, and small to medium surf.
- Made from recycled fiberglass. Plastic‑free packaging. Includes screw.
| Spec | Details |
|---|---|
| Setup | Single Fin |
| Material | Solid Fiberglass |
| Flex Rating | Medium / Consistent |
| Size Options | 7", 8", 9", 10.25", 11" |
| Recommended Board Length |
7" → up to 7'6" 8" → 7'6" – 8'4" 9" → 8'4" – 9'2" 10.25" → 9'2" – 9'8" 11" → 9'8" and over |
| System Compatibility | Standard single fin box (US box) |
| Included Accessories | Screws |
| Eco Credentials | Recycled fiberglass, plastic‑free packaging |
| Spec | Details |
|---|---|
| Setup | Single Fin |
| Material | Solid Fiberglass |
| Flex Rating | Medium / Consistent |
| Size Options | 7", 8", 9", 10.25", 11" |
| Recommended Board Length |
7" → up to 7'6" 8" → 7'6" – 8'4" 9" → 8'4" – 9'2" 10.25" → 9'2" – 9'8" 11" → 9'8" and over |
| System Compatibility | Standard single fin box (US box) |
| Included Accessories | Screws |
| Eco Credentials | Recycled fiberglass, plastic‑free packaging |
Fin Setup Guide
Not sure which fin setup matches your board and the waves you surf? Don’t overthink it — here’s the simple breakdown. No degree in hydrodynamics required.
| Setup | Best For | Performance Summary |
|---|---|---|
| Single | Longboards, classic noseriding | Pure glide, smooth trim, classic feel |
| Twin | Fish / retro shortboards, small waves | Fastest, loosest, skatey feel |
| Thruster | Modern shortboards, all‑conditions | Speed + control, most popular setup |
| Quad | Shortboards / fish, small to medium waves | Speed generation + extra hold |
| 2+1 | Mid‑lengths, versatile surf | Stability of longboard + turning ability |
Fin Material Guide
Fin material changes everything — from how your board responds to how it feels under your feet. No need to geek out on flex formulas. Think of this as the “personality test” for your fins. Pick the one that matches your weight, your waves, and how you like to surf.
| Material | One‑Line Personality | Best For | Wave Preference |
|---|---|---|---|
| Plastic | Light, soft, and forgiving | Beginners, kids, or a backup set | Small, mushy waves |
| Fiberglass | The classic – solid, smooth, and predictable | Intermediate to advanced; moving from fixed fins to a fin system | All conditions, especially powerful surf |
| Composite (Honeycomb) | Lightweight and lively – a bit of spring in every turn | Small‑wave enthusiasts, intermediates who want speed generation | Weak to medium waves, beach breaks |
| Carbon Fiber | Ultra‑stiff, explosive, and pro‑level | Advanced and competitive surfers | High‑performance surfing – generating speed in small surf or drawing powerful lines in big waves. |
Fin System Compatibility Guide
Fin systems are like languages – if your board speaks FCS, you can't hand it a Futures fin and expect it to work. Sounds obvious, but it's the most common mistake first‑time buyers make. Here's your cheat sheet to figure out which system your board has and what fins to buy. No guessing required.
| System | How to Spot It | Installation | One‑Line Feel |
|---|---|---|---|
| FCS | Two separate round plugs per fin; two small tabs on fin base | Push in + two grub screws (hex key required) | Classic, reliable, slightly looser feel |
| FCS II | One elongated fin plug; internal locking mechanism; may have colored insert | Push to click – tool‑free (screws optional) | Quick swaps, modern convenience, springy feel |
| Futures | One continuous slot per fin box; single solid base tab on fin | Slide in + one front screw (Allen key) | Solid, planted, drive‑oriented |
| Single Box (US Box) | One long center slot running lengthwise on the board | Screw + sliding plate or pin (adjustable) | Classic longboard glide, tuneable fin position |

